Family name Nuengjakjoy (Nuengjakjoy 
) , around the globe, is a very rare surname. The family name Nuengjakjoy is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nuengjakjoy | Thailand |
Saijai, Thanwarat, and Tanapornpan